[DependencyInjection] Fail gracefully when attempting to autowire composite types #46973
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stof
approved these changes
Jul 18, 2022
fabpot
approved these changes
Jul 19, 2022
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Thank you @derrabus. |
This was referenced Jul 29, 2022
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Symfony 4.4 does not support autowiring union types. Unfortunately, we run into a fatal error when autowiring is attempted for a parameter with an intersection type nested into a union (
(A&B)|C). Ironically, the error occurs while we try to generate a nice exception message.This PR fixes this, so the developer gets a nice exception message about the parameter that cannot be autowired.
For nullable unions however,
nullis injected. This already was the case forA|nulland it works out of the box for(A&B)|null. I've added a test case that covers this case.